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Ultratronics v1.0DATASHEET
Author Bart Meijer
Date March 7, 2018
Document version 1.3
Ultratronics Datasheet – Reprapworld.com 1
PRODUCT OVERVIEWPRODUCT OVERVIEWUltratronics is the latest development in 3D printer electronics. It has everything you need... and more. This board looks very similar to the popular Megatronics board, but it much more power due to the 32-bit Atmega SAM3X8E clocked at 84Mhz. This speed allows for more calculations and more features, which resulted in this 3D printer beast. Besides controlling 3D printers, this board can handle alsoother CNC tasks like milling, laser-cutting, etc when diferent rmware is applied.
The design is based on Arduino Due and combines the best features of Megatronics to a new more powerful board. The board is therefor compatible with Arduino software, but optimized for 3D printers.
The board is supplied in a Pro and a normal version. The normal version provides the same core components, but to reduce cost for more general use it has no Ethernet support and two thermo couples as where the Pro version has four.
For details on the microprocessor used, please refer to http://www.atmel.com/Images/Atmel-11057-32-bit-Cortex-M3-Microcontroller-SAM3X-SAM3A_Datasheet.pdf
This document will give technical details for development purposes. End users should refer to the Ultratronics quick start guide for basic usage and safety considerations.
Ultratronics Datasheet – Reprapworld.com 2
DOCUMENT HISTORYDOCUMENT HISTORY
Version 0.5 Creation
Version 1.0 Added SERIAL header to list of connectors
Version 1.1 Added imagesAdded power ratings to connectors
Version 1.2 Added connector schematic
Version 1.3 Fix hole layoutAdjusted serial connector description
Ultratronics Datasheet – Reprapworld.com 3
PRODUCT CHANGE HISTORYPRODUCT CHANGE HISTORY
Version 1.0 revision C
• First public release
Ultratronics Datasheet – Reprapworld.com 4
TECHNICAL SPECIFICATIONTECHNICAL SPECIFICATION
Microcontroller Atmega SAM3X8E
Operating Voltage Electronics 3.3V
Operating Voltage High 12-24V (15A heated bed, 7A electronics)
DC Current per I/O Pin 40mA
Clock Speed 84Mhz
MAJOR FEATURESMAJOR FEATURES
Atmega SAM3X8E Powerful SAM3X8E 32-bit processor with 512 KB memory, running at 84Mhz
ThermocoupleOn board support for connecting four (Pro)/two (Normal) thermo couples two external
SD CardAutonomous printing from Micro SD card on board orexternal SD card, using the external SD card PCB module. This board support SD card detection.
Ultratronics Datasheet – Reprapworld.com 5
Seven MOSFETsThe board has 4 regular MOSFETs (25A), two 1A MOSFETs (fans) and one MOSFET for the heated bed (IRLS3034PBF) to support many needs.
Up to 7 stepper driversCompatible with RAMPS, 7 slots for stepper drivers (not included). Modularized to make replacement easy for damaged drivers. All slots are Pololu compatible.
EthernetThe board support Ethernet connections. Firmware must provide additional modules to process the frames.
Support for many peripheralsThe board's functions can be extended using free available headers. See the connectors section for more information
Ultratronics Datasheet – Reprapworld.com 6
OTHER FEATURESOTHER FEATURES• The board's low voltage circuit can be powered from any voltage between
12 to 24V, by setting a jumper• PWR is protected by a replaceable 15A fuse• The 5V lines are protected by a 500mA resettable fuse• A piezo is included to allow the printer to give feedback with sound• Each stepper driver slot has a breakout to connect external stepper drivers
to the board.• Four layer high quality PCB board
Ultratronics Datasheet – Reprapworld.com 7
CONNECTORSCONNECTORS
Name Description
XMOT,YMOT,ZMOT (2x),E0MOT,E1MOT,E2MOT,E3MOT
Connectors for bipolar stepper drivers
Stepper slot jumpers
Microstepping mode jumpers. See your stepper driver documentation for more information.
E0Out – Zout Breakout headers for stepper slots 1. GND2. DIR3. STEP4. ENABLE
5V 5V output (500mA max)
12V * High voltage output, voltage is the same as the PWR input.
FAN1 Fan 1 (1A max)
FAN2 Fan 2 (1A max)
Ultratronics Datasheet – Reprapworld.com 8
T0 Thermistor 0
T1 Thermistor 1
T2 Thermistor 2
T3 Thermistor 3
T4 Thermistor 4
TC1 Thermo couple 1
TC2 Thermo couple 2
TC3 ** Thermo couple 3
TC4 ** Thermo couple 4
Ethernet ** Ethernet connection
I2C I2C header (2x4 header)1. SCL2. SCL3. SDA4. SDA5. 5V6. 5V7. GND8. GND
Analog Analog I/Os1. +3v32. SDA03. A84. SCL05. A106. A9
End stops X-,X+,Y-,Y+,Z-,Z+
Connectors for connecting endstopsS: Signal pin-: GND+: 3V3
SDOUT External SD card header1. 5V2. A23. MISO4. MOSI5. SCK6. D537. GND8. SD Detect (A6)
Powersel Power source select. This determines how the 5V circuit is
Ultratronics Datasheet – Reprapworld.com 9
powered.12V: Power from PWRUSBP: Power from USB programming portUSB: Power from USB native port
ICSP 2x3 breakout with SPI1. MISO2. +5V3. SCK4. MOSI5. MASTER RESET6. GND
DEBUG Debug header1. GND2. JTAG_TCK3. JTAG_TMS4. MASTER RESET
PS-ON Header do enable/disable the power supply
E0 - E3 Extruder heater output (5A max)
HB Heated bed (15A max)
HBIN Heated bed power (12-24V) *
PWR Power input (12-24V) *15A max
SERIAL 1. Serial2 RX / D172. Serial2 TX / D163. Serial1 RX / D194. Serial1 TX / D18
* Make sure that your peripherals support the input voltage. If you supply 24V, all outputs on the board will supply 24V too.
** Pro version only
Ultratronics Datasheet – Reprapworld.com 10
PIN DEFINITIONPIN DEFINITIONThis is the digital I/O assignment for Ultratronics. You can use it to adjust your rmware to match Ultratronics. Also check https://www.arduino.cc/en/Hacking/PinMappingSAM3X for details.
Pin Definition Pin Definition
D0 RX0 D38 E3 axis direction
D1 TX0 D39 E3 axis step
D2 Heated bed * D40 E3 axis enable
D3 Extruder 0 * D41 E2 axis direction
D4 N/C * D42 E2 axis step
D5 FAN 2 * D43 E2 axis enable
D6 FAN 1 * D44 E1 axis step
D7 Extruder 2 * D45 E1 axis enable
D8 Extruder 1 * D46 E0 axis direction
D9 Extruder 3 * D47 E0 axis step
D10 N/C * D48 E0 axis enable
D11 Y-Max * D49 Interrupt ethernet
D12 Y-Min * D50 CS TC3
D13 Debug LED D51 CS TC2
D14 N/C D52 CS TC1
D15 N/C D53 N/C
D16 TXD2 / Serial-4 A0/D54 T0
D17 RXD2 / Serial-3 A1/D55 T1
D18 TXD1 / Serial-2 A2/D56 T2
D19 RXD1 / Serial-1 A3/D57 T3
D20 SDA / Analog-2 A4/D58 T4
D21 SCL / Analog-4 A5/D59 CS SD
D22 Y axis step A6/D60 SD Detect
D23 Y axis direction A7/D61 CS Ethernet
D24 Z axis enable A8/D62 Analog-3 / SDOut-2
D25 Z axis step A9/D63 Analog-6
D26 Z axis direction A10/D64 Analog-5
Ultratronics Datasheet – Reprapworld.com 11
D27 Speaker A11/D65 CS TC0
D28 Z-Max D66 N/C
D29 Z-Min D67 N/C
D30 X-Max D68 N/C
D31 X-Min D69 N/C
D32 PS-ON D70 SDA
D33 Y axis enable D71 SCL
D34 X axis direction D72 LED RX
D35 X axis step D73 LED TX
D36 E1 axis direction D74 MISO
D37 X axis enable D75 MOSI
D76 SCK
D77 N/C
D78 N/C
* This pin provides PWM
Ultratronics Datasheet – Reprapworld.com 12
BOARD DIMENSIONSBOARD DIMENSIONS
Width: 155mmDepth: 112.025mm
List of M3 holes (measured from the bottom left):
3, 12.216.25, 109.25055.3, 65.567.5, 14.398.9, 64.5152.0, 6.6152.0, 109.0
Ultratronics Datasheet – Reprapworld.com 13